following suggestion of a board member here..i have suscessfully created the rc. script for starting my application as service at boot..

Now according to google search..i am supposed to place that script in rc.d directory and then run chkconfig..

chkconfig annoyingly is not available on slackware

placing the script in rc.local runs it only on the first boot where as i want the service to run on every boot.

any helpful pointers in right directions..would appreciate...

Slackware requires a bit more hacking than the RH distributions, and requires you to create the rc script, and then add that script call from either rc.local or to the run-levels you want it in. Of course, don't forget to chmod 755 rc.<script>.

Just for your information rc.local runs every time the machine starts, and this is the same procedure for all of the other startup scripts as well.

Regards,

Alunduil

well if i do a proper shut down or reboot either via the shutdown utlity or ctrl+alt+del then it works fine

However upon an improper shutdown like power failure or hitting the reset swicth..the service doesnt start....that is quite the incovience because i have built a web cache which will be running 24/7 .but in case a power faiure may occur..it should start automatically..

after giving the path of the rc. script in rc.local do i have to give the start prefix like

/etc/rc.d/rc.someapp start

or just add the line in rc.local without affixing the start parameter

That depends on how the script is written. If you know how to read scripts, then you would know. Did the script come with documentation about how to run the script? Try the script from a command line without the 'start' prefix and see what happens.
If the script needs the 'start' prefix, then you should get a usage error. 'start', 'stop', and 'restart' are functions that can be written into scripts, but not all scripts use them. It all depends on how the script developer/writer wrote the script.

the arguments are specified using "case" in shell scripts - take a look at a simple script that uses it to see how it works, like /etc/rc.d/rc.samba for example. it's rather simple, you can add it in your script if you want. also check the bash man page, and there are a ton of tutorials on writing scripts online.

not sure why listing the script in rc.local isn't working, but rc.local is called by rc.M, which is in turn called by /etc/inittab at startup in multiuser runlevels... maybe there is a lock or something that needs to be cleared if the app is shutdown improperly? if so, you could check for that in your script?